Cheap as, easily fitted with 4 wires (after locking out the ballasts of ya dizzy), and can be changed on the fly with a laptop. 7(?) points of adjustment of advance and includes a hard cut rpm.... Or do i just go for the MJ?

mattsmadmini wrote:Cheap as, easily fitted with 4 wires (after locking out the ballasts of ya dizzy), and can be changed on the fly with a laptop. 7(?) points of adjustment of advance and includes a hard cut rpm.... Or do i just go for the MJ?

Looks very good on the website but it pretty basic vs megajolt. you can only plot degrees vs RPM by the looks of it where for MJ you can plot degrees for RPM/Load which is important for economy and boost. MJ can do hard cut too , iv only been using soft cut and works fine as I only get a max of maybe 200rpm over .

I guess it would come down too cost and also what you can do to install. Megajolt is definitely a more involved installation but I would choose over a distributor.

Ben,Interested to hear about the map settings you have used in the Megajolt.I've been using what I believe to be the standard Metro Turbo dizzy curve advance in my NoDiz (like MJ!), but it appears most people who have moved to proper mapping (and perhaps visited a dyno) use much more advance.I'll get to a dyno soon, just thought I'd get a feel for things first so I can talk sensibly to the dyno operator (and maybe convince him to put more advance into it!).

I had mine dyno tuned when the megajolt was installed but I think my map would be way off for you as yours is 1275cc? You can tune the cruising values yourself pretty easy, just add some timing in the high vacuum areas.

I have a map for a 1293 but is low comp big boost. let me know ill post some screenshots.

MattEll wrote:Ben,Interested to hear about the map settings you have used in the Megajolt.I've been using what I believe to be the standard Metro Turbo dizzy curve advance in my NoDiz (like MJ!), but it appears most people who have moved to proper mapping (and perhaps visited a dyno) use much more advance.I'll get to a dyno soon, just thought I'd get a feel for things first so I can talk sensibly to the dyno operator (and maybe convince him to put more advance into it!).

Thanks Ben. I assume these figures include the basic advance? (From my Haynes manual, 7 deg for Metro Turbo).In my case, the local tuning guy says that my dizzy provides 2 degrees at 1200RPM, so should actually have the seven degrees added (if basic advance on my NoDiz stays at zero - which seems the logical way to do it).